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Lv Z, Ali A, Wang N, Ren H, Liu L, Yan F, Shad M, Hao H, Zhang Y, Rahman FU. Co-targeting CDK 4/6 and C-MYC/STAT3/CCND1 axis and inhibition of tumorigenesis and epithelial-mesenchymal-transition in triple negative breast cancer by Pt(II) complexes bearing NH 3 as trans-co-ligand. J Inorg Biochem 2024; 259:112661. [PMID: 39018748 DOI: 10.1016/j.jinorgbio.2024.112661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/28/2024] [Accepted: 07/05/2024] [Indexed: 07/19/2024]
Abstract
In search of potential anticancer agents, we synthesized SNO-donor salicylaldimine main ligand-based Pt(II) complexes bearing NH3 as co-ligand at trans-position (C1-C6). These complexes showed similarity in structure with transplatin as the two N donor atoms of the main ligand and NH3 co-ligand were coordinated to Pt in trans position to each other. Each complex with different substituents on the main ligand was characterized thoroughly by detailed spectroscopic and spectrophotometric methods. Four of these complexes were studied in solid state by single crystal X-ray analysis. The stability of reference complex C1 was measured in solution state in DMSO‑d6 or its mixture with D2O using 1H NMR methods. These complexes were further investigated for their anticancer activity in triple-negative-breast (TNBC) cells including MDA-MB-231, MDA-MB-468 and MDA-MB-436 cells. All these complexes showed satisfactory cytotoxic effect as revealed by the MTT results. Importantly, the highly active complex C4 anticancer effect was compared to the standard chemotherapeutic agents including cisplatin, oxaliplatin and 5-fluorouracil (5-FU). Functionally, C4 suppressed invasion, spheroids formation ability and clonogenic potential of cancer cells. C4 showed synergistic anticancer effect when used in combination with palbociclib, JQ1 and paclitaxel in TNBC cells. Mechanistically, C4 inhibited cyclin-dependent kinase (CDK)4/6 pathway and targeted the expressions of MYC/STAT3/CCND1/CNNE1 axis. Furthermore, C4 suppressed the EMT signaling pathway that suggested a role of C4 in the inhibition of TNBC metastasis. Our findings may pave further in detailed mechanistic study on these complexes as potential chemotherapeutic agents in different types of human cancers.
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Affiliation(s)
- Zhimin Lv
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China
| | - Amjad Ali
- Institute of Integrative Biosciences, CECOS University of IT and Emerging Sciences, Peshawar, KPK, Pakistan; Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, People's Republic of China
| | - Na Wang
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China
| | - Haojie Ren
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China
| | - Lijing Liu
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China
| | - Fufu Yan
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China
| | - Man Shad
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China; School of Life Sciences, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Huifang Hao
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China; School of Life Sciences, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yongmin Zhang
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005 Paris, France.
| | - Faiz-Ur Rahman
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China.
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Fischer S, Lichtenthaeler C, Stepanenko A, Heyl F, Maticzka D, Kemmerer K, Klostermann M, Backofen R, Zarnack K, Weigand JE. Heterogenous nuclear ribonucleoprotein D-like controls endothelial cell functions. Biol Chem 2024; 405:229-239. [PMID: 37942876 DOI: 10.1515/hsz-2023-0254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023]
Abstract
HnRNPs are ubiquitously expressed RNA-binding proteins, tightly controlling posttranscriptional gene regulation. Consequently, hnRNP networks are essential for cellular homeostasis and their dysregulation is associated with cancer and other diseases. However, the physiological function of hnRNPs in non-cancerous cell systems are poorly understood. We analyzed the importance of HNRNPDL in endothelial cell functions. Knockdown of HNRNPDL led to impaired proliferation, migration and sprouting of spheroids. Transcriptome analysis identified cyclin D1 (CCND1) and tropomyosin 4 (TPM4) as targets of HNRNPDL, reflecting the phenotypic changes after knockdown. Our findings underline the importance of HNRNPDL for the homeostasis of physiological processes in endothelial cells.
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Affiliation(s)
- Sandra Fischer
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Chiara Lichtenthaeler
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Anastasiya Stepanenko
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Florian Heyl
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Daniel Maticzka
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Katrin Kemmerer
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Melina Klostermann
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Rolf Backofen
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Kathi Zarnack
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Julia E Weigand
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
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Ma X, Zheng J, He K, Wang L, Wang Z, Wang K, Liu Z, San Z, Zhao L, Wang L. TGFA expression is associated with poor prognosis and promotes the development of cervical cancer. J Cell Mol Med 2024; 28:e18086. [PMID: 38152044 PMCID: PMC10844698 DOI: 10.1111/jcmm.18086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/30/2023] [Accepted: 12/10/2023] [Indexed: 12/29/2023] Open
Abstract
Cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC) are the second most common cancers in women aged 20-39. While HPV screening can help with early detection of cervical cancer, many patients are already in the medium to late stages when they are identified. As a result, searching for novel biomarkers to predict CESC prognosis and propose molecular treatment targets is critical. TGFA is a polypeptide growth factor with a high affinity for the epidermal growth factor receptor. Several studies have shown that TGFA can improve cancer growth and progression, but data on its impact on the occurrence and advancement of CESC is limited. In this study, we used clinical data analysis and bioinformatics techniques to explore the relationship between TGFA and CESC. The results showed that TGFA was highly expressed in cervical cancer tissues and cells. TGFA knockdown can inhibit the proliferation, migration and invasion of cervical cancer cells. In addition, after TGFA knockout, the expression of IL family and MMP family proteins in CESC cell lines was significantly reduced. In conclusion, TGFA plays an important role in the occurrence and development of cervical cancer. Therefore, TGFA may become a new target for cervical cancer treatment.
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Affiliation(s)
- Xiaoxuan Ma
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Jingying Zheng
- Department of Gynecology and ObstetricsSecond Hospital of Jilin UniversityChangchunChina
| | - Kang He
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Liangjia Wang
- Department of Gynecology and ObstetricsSecond Hospital of Jilin UniversityChangchunChina
| | - Zeyu Wang
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Kai Wang
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Zunlong Liu
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Zhiqiang San
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Lijing Zhao
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
| | - Lisheng Wang
- Department of RehabilitationSchool of NursingJilin UniversityChangchunChina
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Chen C, Lu J, Li W, Lu X. Circular RNA ATP2C1 (has_circ_0005797) sponges miR-432/miR-335 to promote breast cancer progression through regulating CCND1 expression. Am J Cancer Res 2023; 13:3433-3448. [PMID: 37693160 PMCID: PMC10492110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023] Open
Abstract
Breast cancer (BC) is the most frequently diagnosed malignancy in the world. Accumulating evidence has indicated that circular RNAs (circRNAs) play essential roles in BC. Here we investigated the biological functions of circATP2C as a competing endogenous RNA (ceRNA) in BC development. We found that circATP2C1 expression was upregulated in BC cells and tissues and was significantly associated with the poor overall survival in BC patients. CircATP2C1 is more resistant to RNase R exonuclease and Actinomycin D than is the linear mRNA of ATP2C1. CircATP2C1-knockdown inhibited the viability, colony proliferation and invasion abilities, while increasing the apoptosis rates of BC cells in vitro, as well as inhibiting tumor mass, size and weight in vivo. Upregulation of miR-432 and miR-335 inhibited CCND1 expression in BC cells. Both miR-432/miR-335 specifically bind to the 3'-UTR of circATP2C1 and CCND1 (CyclinD1). The inhibition of the aggression of BC cells by circATP2C1-knockdown was rescued by co-transfection of miR-432/miR-335 inhibitors. In conclusion, circATP2C1 promotes BC oncogenesis and metastasis by sponging miR-432/miR-335 to abolish the inhibition of the target gene, CCND1. This study suggests that circATP2C1 has implications for BC diagnosis and treatment.
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Affiliation(s)
- Caiping Chen
- Department of Breast Surgery, Affiliated Hospital of Jiaxing University (The First Hospital of Jiaxing)Jiaxing, Zhejiang, China
| | - Jianju Lu
- Department of Breast Surgery, Affiliated Hospital of Jiaxing University (The First Hospital of Jiaxing)Jiaxing, Zhejiang, China
| | - Wang Li
- Department of Breast Surgery, Affiliated Hospital of Jiaxing University (The First Hospital of Jiaxing)Jiaxing, Zhejiang, China
- School of Graduate, Bengbu Medical CollegeBengbu, Anhui, China
| | - Xiang Lu
- Department of Breast Surgery, Affiliated Hospital of Jiaxing University (The First Hospital of Jiaxing)Jiaxing, Zhejiang, China
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Fang WB, Medrano M, Cote P, Portsche M, Rao V, Hong Y, Behbod F, Knapp JR, Bloomer C, Noel-Macdonnell J, Cheng N. Transcriptome analysis reveals differences in cell cycle, growth and migration related genes that distinguish fibroblasts derived from pre-invasive and invasive breast cancer. Front Oncol 2023; 13:1130911. [PMID: 37091166 PMCID: PMC10118028 DOI: 10.3389/fonc.2023.1130911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/13/2023] [Indexed: 04/09/2023] Open
Abstract
Background/Introduction As the most common form of pre-invasive breast cancer, ductal carcinoma in situ (DCIS) affects over 50,000 women in the US annually. Despite standardized treatment involving lumpectomy and radiation therapy, up to 25% of patients with DCIS experience disease recurrence often with invasive ductal carcinoma (IDC), indicating that a subset of patients may be under-treated. As most DCIS cases will not progress to invasion, many patients may experience over-treatment. By understanding the underlying processes associated with DCIS to IDC progression, we can identify new biomarkers to determine which DCIS cases may become invasive and improve treatment for patients. Accumulation of fibroblasts in IDC is associated with disease progression and reduced survival. While fibroblasts have been detected in DCIS, little is understood about their role in DCIS progression. Goals We sought to determine 1) whether DCIS fibroblasts were similar or distinct from normal and IDC fibroblasts at the transcriptome level, and 2) the contributions of DCIS fibroblasts to breast cancer progression. Methods Fibroblasts underwent transcriptome profiling and pathway analysis. Significant DCIS fibroblast-associated genes were further analyzed in existing breast cancer mRNA databases and through tissue array immunostaining. Using the sub-renal capsule graft model, fibroblasts from normal breast, DCIS and IDC tissues were co-transplanted with DCIS.com breast cancer cells. Results Through transcriptome profiling, we found that DCIS fibroblasts were characterized by unique alterations in cell cycle and motility related genes such as PKMYT1, TGF-α, SFRP1 and SFRP2, which predicted increased cell growth and invasion by Ingenuity Pathway Analysis. Immunostaining analysis revealed corresponding increases in expression of stromal derived PKMYT1, TGF-α and corresponding decreases in expression of SFRP1 and SFRP2 in DCIS and IDC tissues. Grafting studies in mice revealed that DCIS fibroblasts enhanced breast cancer growth and invasion associated with arginase-1+ cell recruitment. Conclusion DCIS fibroblasts are phenotypically distinct from normal breast and IDC fibroblasts, and play an important role in breast cancer growth, invasion, and recruitment of myeloid cells. These studies provide novel insight into the role of DCIS fibroblasts in breast cancer progression and identify some key biomarkers associated with DCIS progression to IDC, with important clinical implications.
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Affiliation(s)
- Wei Bin Fang
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Marcela Medrano
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Paige Cote
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Mike Portsche
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Vinamratha Rao
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Yan Hong
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Fariba Behbod
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Jennifer R. Knapp
- Center for Genes Environment and Health, National Jewish Health, Denver, CO, United States
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, Kansas City, KS, United States
| | - Clark Bloomer
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, Kansas City, KS, United States
| | - Janelle Noel-Macdonnell
- Biostatistics and Epidemiology Core, Health Services and Outcomes Research Children’s Mercy Hospital, Kansas City, MO, United States
- Department of Pediatrics, University of Missouri-Kansas City (UMKC) School of Medicine, Kansas City, MO, United States
| | - Nikki Cheng
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, United States
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, United States
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Deb S, Chakrabarti A, Fox SB. Prognostic and Predictive Biomarkers in Familial Breast Cancer. Cancers (Basel) 2023; 15:cancers15041346. [PMID: 36831687 PMCID: PMC9953970 DOI: 10.3390/cancers15041346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/06/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
Large numbers of breast cancers arise within a familial context, either with known inherited germline mutations largely within DNA repair genes, or with a strong family history of breast and/or ovarian cancer, with unknown genetic underlying mechanisms. These cancers appear to be different to sporadic cases, with earlier age of onset, increased multifocality and with association with specific breast cancer histological and phenotypic subtypes. Furthermore, tumours showing homologous recombination deficiency, due to loss of BRCA1, BRCA2, PALB2 and CHEK2 function, have been shown to be especially sensitive to platinum-based chemotherapeutics and PARP inhibition. While there is extensive research and data accrued on risk stratification and genetic predisposition, there are few data pertaining to relevant prognostic and predictive biomarkers within this breast cancer subgroup. The following is a review of such biomarkers in male and female familial breast cancer, although the data for the former are particularly sparse.
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Affiliation(s)
- Siddhartha Deb
- Anatpath, Gardenvale, VIC 3185, Australia
- Monash Health Pathology, Clayton, VIC 3168, Australia
- Correspondence:
| | | | - Stephen B. Fox
- Sir Peter MacCallum Department of Oncology, Peter MacCallum Cancer Centre, University of Mebourne, Melbourne, VIC 3101, Australia
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Gao Y, Wang Y, Xu L, Xie X, Zhu L, Wang F. CircRTN1 acts as a miR-431-5p sponge to promote thyroid cancer progression by upregulating TGFA. Hormones (Athens) 2022; 21:611-623. [PMID: 35804263 DOI: 10.1007/s42000-022-00378-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 05/27/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE This study aimed to explore the role and underlying mechanism of circular RNA (circRNA) reticulon 1 (circRTN1) in thyroid cancer (TC). METHODS The expression levels of circRTN1, microRNA-431-5p (miR-431-5p), and transforming growth factor-alpha (TGFA) mRNA were measured by quantitative real-time PCR (qRT-PCR). Cell proliferation was evaluated using colony formation and 5-ethynyl-2'-deoxyuridine (EdU) assays. Cell apoptosis was analyzed using flow cytometry. Cell migration and invasion were measured using the transwell assay. The protein levels of ki-67, Bax, matrix metalloproteinase 2 (MMP-2), and TGFA were detected using Western blot assay. The interaction between miR-431-5p and circRTN1 or TGFA was verified by dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. The effect of circRTN1on TC in vivo was explored via xenograft tumor assay. RESULTS The expression of circRTN1 was increased in TC tissues and cells. Knockdown of circRTN1 suppressed TC cell proliferation, migration, and invasion, and increased cell apoptosis. MiR-431-5p was a target of circRTN1, and miR-431-5p downregulation reversed the role of circRTN1 knockdown in TC cells. TGFA was identified as a direct target of miR-431-5p, and miR-431-5p exerted the anti-tumor role in TC cells by downregulating TGFA. Moreover, circRTN1 sponged miR-431-5p to regulate TGFA expression. Furthermore, circRTN1 knockdown inhibited tumor growth in vivo. CONCLUSION CircRTN1 acted as a cancer-promoting circRNA in TC by regulating the miR-431-5p/TGFA axis, providing a potential therapeutic strategy for TC treatment.
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Affiliation(s)
- Yu Gao
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China
| | - Yichun Wang
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China
| | - Lei Xu
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China
| | - Xiaoque Xie
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China
| | - Liyang Zhu
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China
| | - Fan Wang
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, No.218, Jixi Road, Hefei, 230022, Anhui, China.
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8
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Ashekyan O, Abdallah S, Shoukari AA, Chamandi G, Choubassy H, Itani ARS, Alwan N, Nasr R. Spotlight on Exosomal Non-Coding RNAs in Breast Cancer: An In Silico Analysis to Identify Potential lncRNA/circRNA-miRNA-Target Axis. Int J Mol Sci 2022; 23:ijms23158351. [PMID: 35955480 PMCID: PMC9369058 DOI: 10.3390/ijms23158351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/26/2022] [Accepted: 07/26/2022] [Indexed: 12/12/2022] Open
Abstract
Breast cancer (BC) has recently become the most common cancer type worldwide, with metastatic disease being the main reason for disease mortality. This has brought about strategies for early detection, especially the utilization of minimally invasive biomarkers found in various bodily fluids. Exosomes have been proposed as novel extracellular vesicles, readily detectable in bodily fluids, secreted from BC-cells or BC-tumor microenvironment cells, and capable of conferring cellular signals over long distances via various cargo molecules. This cargo is composed of different biomolecules, among which are the novel non-coding genome products, such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and the recently discovered circular RNA (circRNA), all of which were found to be implicated in BC pathology. In this review, the diverse roles of the ncRNA cargo of BC-derived exosomes will be discussed, shedding light on their primarily oncogenic and additionally tumor suppressor roles at different levels of BC tumor progression, and drug sensitivity/resistance, along with presenting their diagnostic, prognostic, and predictive biomarker potential. Finally, benefiting from the miRNA sponging mechanism of action of lncRNAs and circRNAs, we established an experimentally validated breast cancer exosomal non-coding RNAs-regulated target gene axis from already published exosomal ncRNAs in BC. The resulting genes, pathways, gene ontology (GO) terms, and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis could be a starting point to better understand BC and may pave the way for the development of novel diagnostic and prognostic biomarkers and therapeutics.
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Affiliation(s)
- Ohanes Ashekyan
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon;
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon; (S.A.); (G.C.); (H.C.)
| | - Samira Abdallah
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon; (S.A.); (G.C.); (H.C.)
| | - Ayman Al Shoukari
- Department of Experimental Pathology, Immunology, and Microbiology, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon;
| | - Ghada Chamandi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon; (S.A.); (G.C.); (H.C.)
- INSERM U976, HIPI, Pathophysiology of Breast Cancer Team, Université de Paris, 75010 Paris, France
| | - Hayat Choubassy
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon; (S.A.); (G.C.); (H.C.)
- Faculty of Sciences, Lebanese University, Beirut 11-0236, Lebanon
| | - Abdul Rahman S. Itani
- Faculty of Biosciences, Heidelberg University, 69120 Heidelberg, Germany;
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), 69120 Heidelberg, Germany
- Division of Inflammatory Stress in Stem Cells, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany
| | - Nisreen Alwan
- College of Health Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
- Correspondence: (N.A.); (R.N.); Tel.: +971-2-5015647 (N.A.); +961-1-350000 (ext. 4812) (R.N.)
| | - Rihab Nasr
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 11-0236, Lebanon; (S.A.); (G.C.); (H.C.)
- Correspondence: (N.A.); (R.N.); Tel.: +971-2-5015647 (N.A.); +961-1-350000 (ext. 4812) (R.N.)
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9
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Wang Q, Wu S, Gu Y, Liang H, He F, Wang X, He D, Wu K. RASAL2 regulates the cell cycle and cyclin D1 expression through PI3K/AKT signalling in prostate tumorigenesis. Cell Death Dis 2022; 8:275. [PMID: 35668070 PMCID: PMC9170709 DOI: 10.1038/s41420-022-01069-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/30/2022] [Accepted: 05/25/2022] [Indexed: 12/14/2022]
Abstract
Prostate cancer (PCa) growth and progression are uniquely dependent on androgens, making the androgen receptor pathway a prime target for therapy; however, cancer progression to androgen independence leads to treatment failure and poor prognosis. In recent years, alternative therapeutic pathways for PCa have been extensively explored, such as the PTEN/PI3K/AKT pathway, cell cycle, and DNA repair. In the present study, we discovered that RASAL2, a RAS-GTPase-activating protein, acted as an oncogene to regulate cancer cell proliferation and the cell cycle and contributed to tumorigenesis via the PI3K/AKT/cyclin D1 pathway. First, RASAL2 expression was higher in PCa tumour and metastatic lymph node tissues than in matched adjacent nontumor tissues and was associated with higher PCa tumour stage, Gleason score and poorer prognosis. Mechanistically, we found that RASAL2 promoted tumour cell proliferation, the transition from G1 to S phase in vitro and tumour growth in vivo. Furthermore, we demonstrated that RASAL2 facilitated phosphorylation of AKT, which in turn increased the expression of cyclin D1 encoded by the CCND1 gene. In addition, there was a positive correlation between the expression of RASAL2 and cyclin D1 in subcutaneous xenografts and clinical specimens. Taken together, these findings indicate that RASAL2 plays an oncogenic role in prostate cancer and may promote PCa tumorigenesis through PI3K/AKT signalling and cyclin D1 expression.
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Affiliation(s)
- Qi Wang
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Shiqi Wu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Yanan Gu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Hua Liang
- Department of Pathology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Fei He
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Xinyang Wang
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Dalin He
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Kaijie Wu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.
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Siddiqui R, Muhammad JS, Maciver SK, Khan NA. Crocodylus porosus Sera a Potential Source to Identify Novel Epigenetic Targets: In Silico Analysis. Vet Sci 2022; 9:vetsci9050210. [PMID: 35622738 PMCID: PMC9144183 DOI: 10.3390/vetsci9050210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 12/04/2022] Open
Abstract
We have previously found that sera from Crocodylus porosus contain anticancer agents and the treatment of MCF7 cells with this serum resulted in the differential expression of 51 genes. The purpose of this study was to use in silico analysis to identify genes that might be epigenetically modulated in cells treated with crocodile serum and to understand the role of potential genes as novel candidates with epigenetic therapeutic potential. The findings report five proto-oncogenes (TUBA1B, SLC2A1, PGK1, CCND1, and NCAPD2) and two tumor suppressor genes (RPLP2, RPL37) as novel therapeutic targets. Furthermore, we present a comprehensive overview of relevant studies on epigenetic regulation of these genes along with an insight into their clinical implications. Therefore, elucidating the molecules present in the serum and gut bacteria of reptiles such as crocodiles may offer insights into the role of these genes on longevity, health, disease, and life expectancy.
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Affiliation(s)
- Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates;
| | - Jibran Sualeh Muhammad
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Sutherland K. Maciver
- Centre for Discovery Brain Science, Edinburgh Medical School, Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, Scotland, UK;
| | - Naveed Ahmed Khan
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- Correspondence: ; Tel.: +971-65057722
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